<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">

<title>module Test::Unit::Data::ClassMethods - test-unit: Ruby Standard Library Documentation</title>


<script src="../../../js/navigation.js" defer></script>
<script src="../../../js/search.js" defer></script>
<script src="../../../js/search_index.js" defer></script>
<script src="../../../js/searcher.js" defer></script>
<script src="../../../js/darkfish.js" defer></script>

<script src="../../../js/jquery-3.2.0.min.js"></script>

<script src="../../../js/vue.min.js"></script>
<script src="../../../js/js.cookie.min.js"></script>

<link href="../../../css/fonts.css" rel="stylesheet">
<link id='rdoccss' href="../../../css/rdoc.css" rel="stylesheet">
<link href="../../../css/carbon17.css" rel="stylesheet">

<script type="text/javascript">
  var rdoc_rel_prefix = "../../../";
  var index_rel_prefix = "../../../";
  var darkModeCsseHref = "../../../css/rdoc-dm.css"
  var defaultModeCssHref = "../../../css/rdoc.css"
  // var cssDarkmode = Cookies.get('darkmode');
  
  if( Cookies.get("darkmode") == "true") {
	$('#rdoccss').attr("href", darkModeCsseHref);
}

//  https://cssdeck.com/blog/simple-jquery-stylesheet-switcher/

document.write('<style type="text/css">body{display:none}</style>');

</script>


</head>
<body id="top" role="document" class="module">
  <!-- this is class.html -->

  <div id='actionbar' >
    <div class='wrapper mdiv'>
      <ul class='grids g0'></ul>
    </div> 
    <!-- VERSION HEADER for 3.3.0.preview2 NOT FOUND -->
  </div> <!-- end action bar -->

  <div class='wrapper hdiv'>

    


    <nav id='vapp' role="navigation">
    <div id="project-navigation">
      <div id="home-section" role="region" title="Quick navigation" class="nav-section">
  <h2><a href="../../../index.html" rel="home">Home</a></h2>

  <div id="table-of-contents-navigation"  >
    <a href="../../../table_of_contents.html#pages">Pages</a>
    <a href="../../../table_of_contents.html#classes">Classes</a>
    <a href="../../../table_of_contents.html#methods">Methods</a>
  </div>
</div>

      <div id="search-section" role="search" class="project-section initially-hidden">
  <form action="#" method="get" accept-charset="utf-8">
    <div id="search-field-wrapper">
      <input id="search-field" role="combobox" aria-label="Search"
             aria-autocomplete="list" aria-controls="search-results"
             type="text" name="search" placeholder="Search" spellcheck="false"
             title="Type to search, Up and Down to navigate, Enter to load">
    </div>

    <ul id="search-results" aria-label="Search Results"
        aria-busy="false" aria-expanded="false"
        aria-atomic="false" class="initially-hidden"></ul>
  </form>
</div>

    </div>


    

    <button id='toggleThing' @click="toggleNav()" >Show/hide navigation</button>
    <div :class="isOpen ? 'block' : 'hidden' " id='toggleMe'>
      <div id="class-metadata">
        
        
        
        
        
<!-- Method Quickref -->
<div id="method-list-section" class="nav-section">
  <h3>Methods</h3>

  <ul class="link-list" role="directory">
    <li ><a href="#method-i-data">#data</a>
    <li ><a href="#method-i-load_data">#load_data</a>
  </ul>
</div>

      </div>
     </div>
    </nav>


    <div id='extraz'><div class='adzbox-index'  >
      
     </div>         
    </div>

    <main role="main" aria-labelledby="module-Test::Unit::Data::ClassMethods">
    <h1 id="module-Test::Unit::Data::ClassMethods" class="module">
      module Test::Unit::Data::ClassMethods
    </h1>

    <section class="description">
    
    </section>

      <section id="5Buntitled-5D" class="documentation-section">





                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-data" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">data</span><span
                                class="method-args">(*arguments, &amp;block)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>This method provides Data-Driven-Test functionality.</p>

<p>Define test data in the test code.</p>

<p>@overload data(label, data, options={})</p>

<pre>@param [String] label specify test case name.
@param data specify test data.
@param [Hash] options specify options.
@option options [Boolean] :keep whether or not to use
  this data in the following test methods

@example data(label, data)
  data(&quot;empty string&quot;, [true, &quot;&quot;])
  data(&quot;plain string&quot;, [false, &quot;hello&quot;])
  def test_empty?(data)
    expected, target = data
    assert_equal(expected, target.empty?)
  end</pre>

<p>@overload data(variable, patterns, options={})</p>

<pre>@param [Symbol] variable specify test pattern variable name.
@param [Array] patterns specify test patterns for the variable.
@param [Hash] options specify options.
@option options [Boolean] :keep whether or not to use
  this data in the following test methods
@option options [Object] :group the test pattern group.
  Test matrix is generated for each test pattern group separately.

@example data(variable, patterns)
  data(:x, [1, 2, 3])
  data(:y, [&quot;a&quot;, &quot;b&quot;])
  def test_patterns(data)
    # 3 * 2 times executed
    # 3: the number of patterns of :x
    # 2: the number of patterns of :y
    p data
      # =&gt; {:x =&gt; 1, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 1, :y =&gt; &quot;b&quot;}
      # =&gt; {:x =&gt; 2, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 2, :y =&gt; &quot;b&quot;}
      # =&gt; {:x =&gt; 3, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 3, :y =&gt; &quot;b&quot;}
  end

Generates test matrix from variable and patterns pairs.</pre>

<p>@overload data(data_set, options={})</p>

<pre>@param [Hash] data_set specify test data as a Hash that
  key is test label and value is test data.
@param [Hash] options specify options.
@option options [Boolean] :keep whether or not to use
  this data in the following test methods

@example data(data_set)
  data(&quot;empty string&quot; =&gt; [true, &quot;&quot;],
       &quot;plain string&quot; =&gt; [false, &quot;hello&quot;])
  def test_empty?(data)
    expected, target = data
    assert_equal(expected, target.empty?)
  end</pre>

<p>@overload data(options={}, &amp;block)</p>

<pre>@param [Hash] options specify options.
@option options [Boolean] :keep whether or not to use
  this data in the following test methods
@yieldreturn [Hash&lt;String, Object&gt;] return test data set
  as a Hash that key is test label and value is test data.

@example data(&amp;block)
  data do
    data_set = {}
    data_set[&quot;empty string&quot;] = [true, &quot;&quot;]
    data_set[&quot;plain string&quot;] = [false, &quot;hello&quot;]
    data_set
  end
  def test_empty?(data)
    expected, target = data
    assert_equal(expected, target.empty?)
  end</pre>

<p>@overload data(options={}, &amp;block)</p>

<pre>@param [Hash] options specify options.
@option options [Boolean] :keep whether or not to use
  this data in the following test methods
@yieldreturn [Array&lt;Symbol, Array&gt;] return test data set
  as an Array of variable and patterns.

@example data(&amp;block)
  data do
    patterns = 3.times.to_a
    [:x, patterns]
  end
  data do
    patterns = []
    character = &quot;a&quot;
    2.times.each do
      patterns &lt;&lt; character
      character = character.succ
    end
    [:y, patterns]
  end
  def test_patterns(data)
    # 3 * 2 times executed
    # 3: the number of patterns of :x
    # 2: the number of patterns of :y
    p data
      # =&gt; {:x =&gt; 0, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 0, :y =&gt; &quot;b&quot;}
      # =&gt; {:x =&gt; 1, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 1, :y =&gt; &quot;b&quot;}
      # =&gt; {:x =&gt; 2, :y =&gt; &quot;a&quot;}
      # =&gt; {:x =&gt; 2, :y =&gt; &quot;b&quot;}
  end

Generates test matrix from variable and patterns pairs.</pre>

                              <div class="method-source-code" id="data-source">
            <pre><span class="ruby-comment"># File test-unit-3.6.1/lib/test/unit/data.rb, line 129</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">data</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">arguments</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span>)
  <span class="ruby-identifier">options</span> = <span class="ruby-keyword">nil</span>
  <span class="ruby-identifier">n_arguments</span> = <span class="ruby-identifier">arguments</span>.<span class="ruby-identifier">size</span>
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">n_arguments</span>
  <span class="ruby-keyword">when</span> <span class="ruby-value">0</span>
    <span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-string">&quot;no block is given&quot;</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">block_given?</span>
    <span class="ruby-identifier">data_set</span> = <span class="ruby-identifier">block</span>
  <span class="ruby-keyword">when</span> <span class="ruby-value">1</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">block_given?</span>
      <span class="ruby-identifier">data_set</span> = <span class="ruby-identifier">block</span>
      <span class="ruby-identifier">options</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">data_set</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">when</span> <span class="ruby-value">2</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
    <span class="ruby-keyword">when</span> <span class="ruby-constant">String</span>
      <span class="ruby-identifier">data_set</span> = {<span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">1</span>]}
    <span class="ruby-keyword">when</span> <span class="ruby-constant">Hash</span>
      <span class="ruby-identifier">data_set</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
      <span class="ruby-identifier">options</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">1</span>]
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">variable</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
      <span class="ruby-identifier">patterns</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">1</span>]
      <span class="ruby-identifier">data_set</span> = [<span class="ruby-identifier">variable</span>, <span class="ruby-identifier">patterns</span>]
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">when</span> <span class="ruby-value">3</span>
    <span class="ruby-keyword">case</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
    <span class="ruby-keyword">when</span> <span class="ruby-constant">String</span>
      <span class="ruby-identifier">data_set</span> = {<span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">arguments</span>[<span class="ruby-value">1</span>]}
      <span class="ruby-identifier">options</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">2</span>]
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">variable</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">0</span>]
      <span class="ruby-identifier">patterns</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">1</span>]
      <span class="ruby-identifier">data_set</span> = [<span class="ruby-identifier">variable</span>, <span class="ruby-identifier">patterns</span>]
      <span class="ruby-identifier">options</span> = <span class="ruby-identifier">arguments</span>[<span class="ruby-value">2</span>]
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">message</span> = <span class="ruby-node">&quot;wrong number arguments(#{n_arguments} for 0..3)&quot;</span>
    <span class="ruby-identifier">raise</span> <span class="ruby-constant">ArgumentError</span>, <span class="ruby-identifier">message</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">options</span> <span class="ruby-operator">||=</span> {}
  <span class="ruby-identifier">data_sets</span> = <span class="ruby-identifier">current_attribute</span>(<span class="ruby-value">:data</span>)[<span class="ruby-value">:value</span>] <span class="ruby-operator">||</span> <span class="ruby-constant">DataSets</span>.<span class="ruby-identifier">new</span>
  <span class="ruby-identifier">data_sets</span>.<span class="ruby-identifier">add</span>(<span class="ruby-identifier">data_set</span>, <span class="ruby-identifier">options</span>)
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-value">:keep</span>] <span class="ruby-keyword">or</span> <span class="ruby-identifier">data_sets</span>.<span class="ruby-identifier">have_keep?</span>
    <span class="ruby-identifier">keep_hook</span> = <span class="ruby-identifier">lambda</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">attr</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">attr</span>.<span class="ruby-identifier">merge</span>(<span class="ruby-value">value:</span> <span class="ruby-identifier">attr</span>[<span class="ruby-value">:value</span>].<span class="ruby-identifier">keep</span>)
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">options</span> = <span class="ruby-identifier">options</span>.<span class="ruby-identifier">merge</span>(<span class="ruby-value">keep:</span> <span class="ruby-keyword">true</span>, <span class="ruby-value">keep_hook:</span> <span class="ruby-identifier">keep_hook</span>)
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">attribute</span>(<span class="ruby-value">:data</span>, <span class="ruby-identifier">data_sets</span>, <span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-load_data" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">load_data</span><span
                                class="method-args">(file_name)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              <p>This method provides Data-Driven-Test functionality.</p>

<p>Load test data from the file. This is shorthand to load test data from file.  If you want to load complex file, you can use {#data} with block.</p>

<p>@param [String] file_name full path to test data file.</p>

<pre>File format is automatically detected from filename extension.</pre>

<p>@raise [ArgumentError] if ‘file_name` is not supported file format. @see <a href="ClassMethods/Loader.html#method-i-load"><code>Loader#load</code></a></p>

<p>@example Load data from CSV file</p>

<pre class="ruby"><span class="ruby-identifier">load_data</span>(<span class="ruby-string">&quot;/path/to/test-data.csv&quot;</span>)
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">test_empty?</span>(<span class="ruby-identifier">data</span>)
  <span class="ruby-identifier">assert_equal</span>(<span class="ruby-identifier">data</span>[<span class="ruby-string">&quot;expected&quot;</span>], <span class="ruby-identifier">data</span>[<span class="ruby-string">&quot;target&quot;</span>].<span class="ruby-identifier">empty?</span>)
<span class="ruby-keyword">end</span>
</pre>

                              <div class="method-source-code" id="load_data-source">
            <pre><span class="ruby-comment"># File test-unit-3.6.1/lib/test/unit/data.rb, line 199</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">load_data</span>(<span class="ruby-identifier">file_name</span>)
  <span class="ruby-identifier">loader</span> = <span class="ruby-constant">Loader</span>.<span class="ruby-identifier">new</span>(<span class="ruby-keyword">self</span>)
  <span class="ruby-identifier">loader</span>.<span class="ruby-identifier">load</span>(<span class="ruby-identifier">file_name</span>)
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

              </section>
              </main>



            </div>  <!--  class='wrapper hdiv' -->


<footer id="validator-badges" role="contentinfo">
<p><a href="https://validator.w3.org/check/referer">Validate</a></p>
<p>Generated by <a href="https://ruby.github.io/rdoc/">RDoc</a> 6.4.0.</p>
<p>Based on <a href="https://github.com/ged/darkfish/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.</p>

  
    <p><p><a href="https://ruby-doc.org">Ruby-doc.org</a> is a service of <a href="https://jamesbritt.com">James Britt</a> and <a href="https://neurogami.com">Neurogami</a>, purveyors of fine <a href='https://jamesbritt.bandcamp.com/'>dance noise</a></p>
</p>
  
  </footer>

<script type="text/javascript">


  let ads  = $("#carbonads-container").children().detach();


  function swapMode() {
    var cookieName = 'darkmode';
    var cssDarkmode = Cookies.get(cookieName);
    console.log("***** swapMode! " + cssDarkmode + " *****");


    if (cssDarkmode == "true") {
      console.log("We have dark mode, set the css to light ...");
      $('#rdoccss').attr("href", defaultModeCssHref);
      $('#cssSelect').text("Dark mode");
      cssDarkmode = "false";
      console.log("swapMode! Now set cookie to " + cssDarkmode);
      Cookies.set(cookieName, cssDarkmode);

    } else {
      console.log("We not have dark mode, set the css to dark ...");
      $('#rdoccss').attr("href", darkModeCsseHref);
      $('#cssSelect').text("Light mode");
      cssDarkmode = "true";
      console.log("swapMode! Now set cookie to " + cssDarkmode);
      Cookies.set(cookieName, cssDarkmode);

    }

    console.log("  --------------- ");
  }


const vueCssApp = new Vue({
el: '#menubar',
data: {
isDark: false
},
methods: {
toggleClass: function(event){
this.isDark = !this.isDark;
}
}
})

const vueApp = new Vue({
el: '#vapp',
data: { 
isOpen: true
},

mounted() {
this.handleResize();
this.manage_mob_classes();
window.addEventListener('resize', this.handleResize)
//this.isOpen !=  (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},
destroyed() {
window.removeEventListener('resize', this.handleResize)
},
created() {
//manage_mob_classes();
},

methods : {
isMobile() {
  return (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},

  handleResize() {
    if (!this.isMobile()) {
      this.isOpen = window.innerWidth > 800;
    }
  },

  manage_mob_classes() {
    if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)) {
      $("nav").addClass("mob_nav");
      $("main").addClass("mob_main");
      $("#extraz").addClass("mob_extraz");
      $("#carbonads-container").addClass("mob_carbonads-container");
      this.isOpen  = false;
    } else {
      $("nav").removeClass("mob_nav") 
        $("main").removeClass("mob_main");
      $("#extraz").removeClass("mob_extraz");
      $("#carbonads-container").removeClass("mob_carbonads-container");
      this.isOpen  = true;
    }
  },

  toggleNav() {
    this.isOpen =! this.isOpen ;
    // alert("Toggle nav!");
    console.log("toggleNav() click: " + this.isOpen );
  }
}
})

$("#carbonads-container").append(ads);


$(function() {

    var darkmode = Cookies.get("darkmode");
    console.log("Document ready: " + darkmode);

    if ( darkmode  == "true" ) {
      $('#cssSelect').text("Light mode");
    } else {
      $('#cssSelect').text("Dark mode");
     }

    $('body').css('display','block');
    });

</script>

    
  </body> 
</html>

